(function (global, factory) {
  typeof exports === 'object' && typeof module !== 'undefined'
    ? (module.exports = factory())
    : typeof define === 'function' && define.amd
      ? define(factory)
      : ((global = typeof globalThis !== 'undefined' ? globalThis : global || self), (global.JSON5 = factory()));
})(this, function () {
  'use strict';

  function createCommonjsModule(fn, module) {
    return (module = { exports: {} }), fn(module, module.exports), module.exports;
  }

  var _global = createCommonjsModule(function (module) {
    // https://github.com/zloirock/core-js/issues/86#issuecomment-115759028
    var global = (module.exports =
      typeof window != 'undefined' && window.Math == Math
        ? window
        : typeof self != 'undefined' && self.Math == Math
          ? self
          : // eslint-disable-next-line no-new-func
            Function('return this')());
    if (typeof __g == 'number') {
      __g = global;
    } // eslint-disable-line no-undef
  });

  var _core = createCommonjsModule(function (module) {
    var core = (module.exports = { version: '2.6.5' });
    if (typeof __e == 'number') {
      __e = core;
    } // eslint-disable-line no-undef
  });
  var _core_1 = _core.version;

  var _isObject = function (it) {
    return typeof it === 'object' ? it !== null : typeof it === 'function';
  };

  var _anObject = function (it) {
    if (!_isObject(it)) {
      throw TypeError(it + ' is not an object!');
    }
    return it;
  };

  var _fails = function (exec) {
    try {
      return !!exec();
    } catch (e) {
      return true;
    }
  };

  // Thank's IE8 for his funny defineProperty
  var _descriptors = !_fails(function () {
    return (
      Object.defineProperty({}, 'a', {
        get: function () {
          return 7;
        },
      }).a != 7
    );
  });

  var document = _global.document;
  // typeof document.createElement is 'object' in old IE
  var is = _isObject(document) && _isObject(document.createElement);
  var _domCreate = function (it) {
    return is ? document.createElement(it) : {};
  };

  var _ie8DomDefine =
    !_descriptors &&
    !_fails(function () {
      return (
        Object.defineProperty(_domCreate('div'), 'a', {
          get: function () {
            return 7;
          },
        }).a != 7
      );
    });

  // 7.1.1 ToPrimitive(input [, PreferredType])

  // instead of the ES6 spec version, we didn't implement @@toPrimitive case
  // and the second argument - flag - preferred type is a string
  var _toPrimitive = function (it, S) {
    if (!_isObject(it)) {
      return it;
    }
    var fn, val;
    if (S && typeof (fn = it.toString) == 'function' && !_isObject((val = fn.call(it)))) {
      return val;
    }
    if (typeof (fn = it.valueOf) == 'function' && !_isObject((val = fn.call(it)))) {
      return val;
    }
    if (!S && typeof (fn = it.toString) == 'function' && !_isObject((val = fn.call(it)))) {
      return val;
    }
    throw TypeError("Can't convert object to primitive value");
  };

  var dP = Object.defineProperty;

  var f = _descriptors
    ? Object.defineProperty
    : function defineProperty(O, P, Attributes) {
        _anObject(O);
        P = _toPrimitive(P, true);
        _anObject(Attributes);
        if (_ie8DomDefine) {
          try {
            return dP(O, P, Attributes);
          } catch (e) {
            /* empty */
          }
        }
        if ('get' in Attributes || 'set' in Attributes) {
          throw TypeError('Accessors not supported!');
        }
        if ('value' in Attributes) {
          O[P] = Attributes.value;
        }
        return O;
      };

  var _objectDp = {
    f: f,
  };

  var _propertyDesc = function (bitmap, value) {
    return {
      enumerable: !(bitmap & 1),
      configurable: !(bitmap & 2),
      writable: !(bitmap & 4),
      value: value,
    };
  };

  var _hide = _descriptors
    ? function (object, key, value) {
        return _objectDp.f(object, key, _propertyDesc(1, value));
      }
    : function (object, key, value) {
        object[key] = value;
        return object;
      };

  var hasOwnProperty = {}.hasOwnProperty;
  var _has = function (it, key) {
    return hasOwnProperty.call(it, key);
  };

  var id = 0;
  var px = Math.random();
  var _uid = function (key) {
    return 'Symbol('.concat(key === undefined ? '' : key, ')_', (++id + px).toString(36));
  };

  var _library = false;

  var _shared = createCommonjsModule(function (module) {
    var SHARED = '__core-js_shared__';
    var store = _global[SHARED] || (_global[SHARED] = {});

    (module.exports = function (key, value) {
      return store[key] || (store[key] = value !== undefined ? value : {});
    })('versions', []).push({
      version: _core.version,
      mode: _library ? 'pure' : 'global',
      copyright: '© 2019 Denis Pushkarev (zloirock.ru)',
    });
  });

  var _functionToString = _shared('native-function-to-string', Function.toString);

  var _redefine = createCommonjsModule(function (module) {
    var SRC = _uid('src');

    var TO_STRING = 'toString';
    var TPL = ('' + _functionToString).split(TO_STRING);

    _core.inspectSource = function (it) {
      return _functionToString.call(it);
    };

    (module.exports = function (O, key, val, safe) {
      var isFunction = typeof val == 'function';
      if (isFunction) {
        _has(val, 'name') || _hide(val, 'name', key);
      }
      if (O[key] === val) {
        return;
      }
      if (isFunction) {
        _has(val, SRC) || _hide(val, SRC, O[key] ? '' + O[key] : TPL.join(String(key)));
      }
      if (O === _global) {
        O[key] = val;
      } else if (!safe) {
        delete O[key];
        _hide(O, key, val);
      } else if (O[key]) {
        O[key] = val;
      } else {
        _hide(O, key, val);
      }
      // add fake Function#toString for correct work wrapped methods / constructors with methods like LoDash isNative
    })(Function.prototype, TO_STRING, function toString() {
      return (typeof this == 'function' && this[SRC]) || _functionToString.call(this);
    });
  });

  var _aFunction = function (it) {
    if (typeof it != 'function') {
      throw TypeError(it + ' is not a function!');
    }
    return it;
  };

  // optional / simple context binding

  var _ctx = function (fn, that, length) {
    _aFunction(fn);
    if (that === undefined) {
      return fn;
    }
    switch (length) {
      case 1:
        return function (a) {
          return fn.call(that, a);
        };
      case 2:
        return function (a, b) {
          return fn.call(that, a, b);
        };
      case 3:
        return function (a, b, c) {
          return fn.call(that, a, b, c);
        };
    }
    return function (/* ...args */) {
      return fn.apply(that, arguments);
    };
  };

  var PROTOTYPE = 'prototype';

  var $export = function (type, name, source) {
    var IS_FORCED = type & $export.F;
    var IS_GLOBAL = type & $export.G;
    var IS_STATIC = type & $export.S;
    var IS_PROTO = type & $export.P;
    var IS_BIND = type & $export.B;
    var target = IS_GLOBAL
      ? _global
      : IS_STATIC
        ? _global[name] || (_global[name] = {})
        : (_global[name] || {})[PROTOTYPE];
    var exports = IS_GLOBAL ? _core : _core[name] || (_core[name] = {});
    var expProto = exports[PROTOTYPE] || (exports[PROTOTYPE] = {});
    var key, own, out, exp;
    if (IS_GLOBAL) {
      source = name;
    }
    for (key in source) {
      // contains in native
      own = !IS_FORCED && target && target[key] !== undefined;
      // export native or passed
      out = (own ? target : source)[key];
      // bind timers to global for call from export context
      exp = IS_BIND && own ? _ctx(out, _global) : IS_PROTO && typeof out == 'function' ? _ctx(Function.call, out) : out;
      // extend global
      if (target) {
        _redefine(target, key, out, type & $export.U);
      }
      // export
      if (exports[key] != out) {
        _hide(exports, key, exp);
      }
      if (IS_PROTO && expProto[key] != out) {
        expProto[key] = out;
      }
    }
  };
  _global.core = _core;
  // type bitmap
  $export.F = 1; // forced
  $export.G = 2; // global
  $export.S = 4; // static
  $export.P = 8; // proto
  $export.B = 16; // bind
  $export.W = 32; // wrap
  $export.U = 64; // safe
  $export.R = 128; // real proto method for `library`
  var _export = $export;

  // 7.1.4 ToInteger
  var ceil = Math.ceil;
  var floor = Math.floor;
  var _toInteger = function (it) {
    return isNaN((it = +it)) ? 0 : (it > 0 ? floor : ceil)(it);
  };

  // 7.2.1 RequireObjectCoercible(argument)
  var _defined = function (it) {
    if (it == undefined) {
      throw TypeError("Can't call method on  " + it);
    }
    return it;
  };

  // true  -> String#at
  // false -> String#codePointAt
  var _stringAt = function (TO_STRING) {
    return function (that, pos) {
      var s = String(_defined(that));
      var i = _toInteger(pos);
      var l = s.length;
      var a, b;
      if (i < 0 || i >= l) {
        return TO_STRING ? '' : undefined;
      }
      a = s.charCodeAt(i);
      return a < 0xd800 || a > 0xdbff || i + 1 === l || (b = s.charCodeAt(i + 1)) < 0xdc00 || b > 0xdfff
        ? TO_STRING
          ? s.charAt(i)
          : a
        : TO_STRING
          ? s.slice(i, i + 2)
          : ((a - 0xd800) << 10) + (b - 0xdc00) + 0x10000;
    };
  };

  var $at = _stringAt(false);
  _export(_export.P, 'String', {
    // 21.1.3.3 String.prototype.codePointAt(pos)
    codePointAt: function codePointAt(pos) {
      return $at(this, pos);
    },
  });

  var codePointAt = _core.String.codePointAt;

  var max = Math.max;
  var min = Math.min;
  var _toAbsoluteIndex = function (index, length) {
    index = _toInteger(index);
    return index < 0 ? max(index + length, 0) : min(index, length);
  };

  var fromCharCode = String.fromCharCode;
  var $fromCodePoint = String.fromCodePoint;

  // length should be 1, old FF problem
  _export(_export.S + _export.F * (!!$fromCodePoint && $fromCodePoint.length != 1), 'String', {
    // 21.1.2.2 String.fromCodePoint(...codePoints)
    fromCodePoint: function fromCodePoint(x) {
      var arguments$1 = arguments;
      // eslint-disable-line no-unused-vars
      var res = [];
      var aLen = arguments.length;
      var i = 0;
      var code;
      while (aLen > i) {
        code = +arguments$1[i++];
        if (_toAbsoluteIndex(code, 0x10ffff) !== code) {
          throw RangeError(code + ' is not a valid code point');
        }
        res.push(
          code < 0x10000
            ? fromCharCode(code)
            : fromCharCode(((code -= 0x10000) >> 10) + 0xd800, (code % 0x400) + 0xdc00),
        );
      }
      return res.join('');
    },
  });

  var fromCodePoint = _core.String.fromCodePoint;

  // This is a generated file. Do not edit.
  var Space_Separator = /[\u1680\u2000-\u200A\u202F\u205F\u3000]/;
  var ID_Start =
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  var ID_Continue =
    /[\xAA\xB5\xBA\xC0-\xD6\xD8-\xF6\xF8-\u02C1\u02C6-\u02D1\u02E0-\u02E4\u02EC\u02EE\u0300-\u0374\u0376\u0377\u037A-\u037D\u037F\u0386\u0388-\u038A\u038C\u038E-\u03A1\u03A3-\u03F5\u03F7-\u0481\u0483-\u0487\u048A-\u052F\u0531-\u0556\u0559\u0561-\u0587\u0591-\u05BD\u05BF\u05C1\u05C2\u05C4\u05C5\u05C7\u05D0-\u05EA\u05F0-\u05F2\u0610-\u061A\u0620-\u0669\u066E-\u06D3\u06D5-\u06DC\u06DF-\u06E8\u06EA-\u06FC\u06FF\u0710-\u074A\u074D-\u07B1\u07C0-\u07F5\u07FA\u0800-\u082D\u0840-\u085B\u0860-\u086A\u08A0-\u08B4\u08B6-\u08BD\u08D4-\u08E1\u08E3-\u0963\u0966-\u096F\u0971-\u0983\u0985-\u098C\u098F\u0990\u0993-\u09A8\u09AA-\u09B0\u09B2\u09B6-\u09B9\u09BC-\u09C4\u09C7\u09C8\u09CB-\u09CE\u09D7\u09DC\u09DD\u09DF-\u09E3\u09E6-\u09F1\u09FC\u0A01-\u0A03\u0A05-\u0A0A\u0A0F\u0A10\u0A13-\u0A28\u0A2A-\u0A30\u0A32\u0A33\u0A35\u0A36\u0A38\u0A39\u0A3C\u0A3E-\u0A42\u0A47\u0A48\u0A4B-\u0A4D\u0A51\u0A59-\u0A5C\u0A5E\u0A66-\u0A75\u0A81-\u0A83\u0A85-\u0A8D\u0A8F-\u0A91\u0A93-\u0AA8\u0AAA-\u0AB0\u0AB2\u0AB3\u0AB5-\u0AB9\u0ABC-\u0AC5\u0AC7-\u0AC9\u0ACB-\u0ACD\u0AD0\u0AE0-\u0AE3\u0AE6-\u0AEF\u0AF9-\u0AFF\u0B01-\u0B03\u0B05-\u0B0C\u0B0F\u0B10\u0B13-\u0B28\u0B2A-\u0B30\u0B32\u0B33\u0B35-\u0B39\u0B3C-\u0B44\u0B47\u0B48\u0B4B-\u0B4D\u0B56\u0B57\u0B5C\u0B5D\u0B5F-\u0B63\u0B66-\u0B6F\u0B71\u0B82\u0B83\u0B85-\u0B8A\u0B8E-\u0B90\u0B92-\u0B95\u0B99\u0B9A\u0B9C\u0B9E\u0B9F\u0BA3\u0BA4\u0BA8-\u0BAA\u0BAE-\u0BB9\u0BBE-\u0BC2\u0BC6-\u0BC8\u0BCA-\u0BCD\u0BD0\u0BD7\u0BE6-\u0BEF\u0C00-\u0C03\u0C05-\u0C0C\u0C0E-\u0C10\u0C12-\u0C28\u0C2A-\u0C39\u0C3D-\u0C44\u0C46-\u0C48\u0C4A-\u0C4D\u0C55\u0C56\u0C58-\u0C5A\u0C60-\u0C63\u0C66-\u0C6F\u0C80-\u0C83\u0C85-\u0C8C\u0C8E-\u0C90\u0C92-\u0CA8\u0CAA-\u0CB3\u0CB5-\u0CB9\u0CBC-\u0CC4\u0CC6-\u0CC8\u0CCA-\u0CCD\u0CD5\u0CD6\u0CDE\u0CE0-\u0CE3\u0CE6-\u0CEF\u0CF1\u0CF2\u0D00-\u0D03\u0D05-\u0D0C\u0D0E-\u0D10\u0D12-\u0D44\u0D46-\u0D48\u0D4A-\u0D4E\u0D54-\u0D57\u0D5F-\u0D63\u0D66-\u0D6F\u0D7A-\u0D7F\u0D82\u0D83\u0D85-\u0D96\u0D9A-\u0DB1\u0DB3-\u0DBB\u0DBD\u0DC0-\u0DC6\u0DCA\u0DCF-\u0DD4\u0DD6\u0DD8-\u0DDF\u0DE6-\u0DEF\u0DF2\u0DF3\u0E01-\u0E3A\u0E40-\u0E4E\u0E50-\u0E59\u0E81\u0E82\u0E84\u0E87\u0E88\u0E8A\u0E8D\u0E94-\u0E97\u0E99-\u0E9F\u0EA1-\u0EA3\u0EA5\u0EA7\u0EAA\u0EAB\u0EAD-\u0EB9\u0EBB-\u0EBD\u0EC0-\u0EC4\u0EC6\u0EC8-\u0ECD\u0ED0-\u0ED9\u0EDC-\u0EDF\u0F00\u0F18\u0F19\u0F20-\u0F29\u0F35\u0F37\u0F39\u0F3E-\u0F47\u0F49-\u0F6C\u0F71-\u0F84\u0F86-\u0F97\u0F99-\u0FBC\u0FC6\u1000-\u1049\u1050-\u109D\u10A0-\u10C5\u10C7\u10CD\u10D0-\u10FA\u10FC-\u1248\u124A-\u124D\u1250-\u1256\u1258\u125A-\u125D\u1260-\u1288\u128A-\u128D\u1290-\u12B0\u12B2-\u12B5\u12B8-\u12BE\u12C0\u12C2-\u12C5\u12C8-\u12D6\u12D8-\u1310\u1312-\u1315\u1318-\u135A\u135D-\u135F\u1380-\u138F\u13A0-\u13F5\u13F8-\u13FD\u1401-\u166C\u166F-\u167F\u1681-\u169A\u16A0-\u16EA\u16EE-\u16F8\u1700-\u170C\u170E-\u1714\u1720-\u1734\u1740-\u1753\u1760-\u176C\u176E-\u1770\u1772\u1773\u1780-\u17D3\u17D7\u17DC\u17DD\u17E0-\u17E9\u180B-\u180D\u1810-\u1819\u1820-\u1877\u1880-\u18AA\u18B0-\u18F5\u1900-\u191E\u1920-\u192B\u1930-\u193B\u1946-\u196D\u1970-\u1974\u1980-\u19AB\u19B0-\u19C9\u19D0-\u19D9\u1A00-\u1A1B\u1A20-\u1A5E\u1A60-\u1A7C\u1A7F-\u1A89\u1A90-\u1A99\u1AA7\u1AB0-\u1ABD\u1B00-\u1B4B\u1B50-\u1B59\u1B6B-\u1B73\u1B80-\u1BF3\u1C00-\u1C37\u1C40-\u1C49\u1C4D-\u1C7D\u1C80-\u1C88\u1CD0-\u1CD2\u1CD4-\u1CF9\u1D00-\u1DF9\u1DFB-\u1F15\u1F18-\u1F1D\u1F20-\u1F45\u1F48-\u1F4D\u1F50-\u1F57\u1F59\u1F5B\u1F5D\u1F5F-\u1F7D\u1F80-\u1FB4\u1FB6-\u1FBC\u1FBE\u1FC2-\u1FC4\u1FC6-\u1FCC\u1FD0-\u1FD3\u1FD6-\u1FDB\u1FE0-\u1FEC\u1FF2-\u1FF4\u1FF6-\u1FFC\u203F\u2040\u2054\u2071\u207F\u2090-\u209C\u20D0-\u20DC\u20E1\u20E5-\u20F0\u2102\u2107\u210A-\u2113\u2115\u2119-\u211D\u2124\u2126\u2128\u212A-\u212D\u212F-\u2139\u213C-\u213F\u2145-\u2149\u214E\u2160-\u2188\u2C00-\u2C2E\u2C30-\u2C5E\u2C60-\u2CE4\u2CEB-\u2CF3\u2D00-\u2D25\u2D27\u2D2D\u2D30-\u2D67\u2D6F\u2D7F-\u2D96\u2DA0-\u2DA6\u2DA8-\u2DAE\u2DB0-\u2DB6\u2DB8-\u2DBE\u2DC0-\u2DC6\u2DC8-\u2DCE\u2DD0-\u2DD6\u2DD8-\u2DDE\u2DE0-\u2DFF\u2E2F\u3005-\u3007\u3021-\u302F\u3031-\u3035\u3038-\u303C\u3041-\u3096\u3099\u309A\u309D-\u309F\u30A1-\u30FA\u30FC-\u30FF\u3105-\u312E\u3131-\u318E\u31A0-\u31BA\u31F0-\u31FF\u3400-\u4DB5\u4E00-\u9FEA\uA000-\uA48C\uA4D0-\uA4FD\uA500-\uA60C\uA610-\uA62B\uA640-\uA66F\uA674-\uA67D\uA67F-\uA6F1\uA717-\uA71F\uA722-\uA788\uA78B-\uA7AE\uA7B0-\uA7B7\uA7F7-\uA827\uA840-\uA873\uA880-\uA8C5\uA8D0-\uA8D9\uA8E0-\uA8F7\uA8FB\uA8FD\uA900-\uA92D\uA930-\uA953\uA960-\uA97C\uA980-\uA9C0\uA9CF-\uA9D9\uA9E0-\uA9FE\uAA00-\uAA36\uAA40-\uAA4D\uAA50-\uAA59\uAA60-\uAA76\uAA7A-\uAAC2\uAADB-\uAADD\uAAE0-\uAAEF\uAAF2-\uAAF6\uAB01-\uAB06\uAB09-\uAB0E\uAB11-\uAB16\uAB20-\uAB26\uAB28-\uAB2E\uAB30-\uAB5A\uAB5C-\uAB65\uAB70-\uABEA\uABEC\uABED\uABF0-\uABF9\uAC00-\uD7A3\uD7B0-\uD7C6\uD7CB-\uD7FB\uF900-\uFA6D\uFA70-\uFAD9\uFB00-\uFB06\uFB13-\uFB17\uFB1D-\uFB28\uFB2A-\uFB36\uFB38-\uFB3C\uFB3E\uFB40\uFB41\uFB43\uFB44\uFB46-\uFBB1\uFBD3-\uFD3D\uFD50-\uFD8F\uFD92-\uFDC7\uFDF0-\uFDFB\uFE00-\uFE0F\uFE20-\uFE2F\uFE33\uFE34\uFE4D-\uFE4F\uFE70-\uFE74\uFE76-\uFEFC\uFF10-\uFF19\uFF21-\uFF3A\uFF3F\uFF41-\uFF5A\uFF66-\uFFBE\uFFC2-\uFFC7\uFFCA-\uFFCF\uFFD2-\uFFD7\uFFDA-\uFFDC]|\uD800[\uDC00-\uDC0B\uDC0D-\uDC26\uDC28-\uDC3A\uDC3C\uDC3D\uDC3F-\uDC4D\uDC50-\uDC5D\uDC80-\uDCFA\uDD40-\uDD74\uDDFD\uDE80-\uDE9C\uDEA0-\uDED0\uDEE0\uDF00-\uDF1F\uDF2D-\uDF4A\uDF50-\uDF7A\uDF80-\uDF9D\uDFA0-\uDFC3\uDFC8-\uDFCF\uDFD1-\uDFD5]|\uD801[\uDC00-\uDC9D\uDCA0-\uDCA9\uDCB0-\uDCD3\uDCD8-\uDCFB\uDD00-\uDD27\uDD30-\uDD63\uDE00-\uDF36\uDF40-\uDF55\uDF60-\uDF67]|\uD802[\uDC00-\uDC05\uDC08\uDC0A-\uDC35\uDC37\uDC38\uDC3C\uDC3F-\uDC55\uDC60-\uDC76\uDC80-\uDC9E\uDCE0-\uDCF2\uDCF4\uDCF5\uDD00-\uDD15\uDD20-\uDD39\uDD80-\uDDB7\uDDBE\uDDBF\uDE00-\uDE03\uDE05\uDE06\uDE0C-\uDE13\uDE15-\uDE17\uDE19-\uDE33\uDE38-\uDE3A\uDE3F\uDE60-\uDE7C\uDE80-\uDE9C\uDEC0-\uDEC7\uDEC9-\uDEE6\uDF00-\uDF35\uDF40-\uDF55\uDF60-\uDF72\uDF80-\uDF91]|\uD803[\uDC00-\uDC48\uDC80-\uDCB2\uDCC0-\uDCF2]|\uD804[\uDC00-\uDC46\uDC66-\uDC6F\uDC7F-\uDCBA\uDCD0-\uDCE8\uDCF0-\uDCF9\uDD00-\uDD34\uDD36-\uDD3F\uDD50-\uDD73\uDD76\uDD80-\uDDC4\uDDCA-\uDDCC\uDDD0-\uDDDA\uDDDC\uDE00-\uDE11\uDE13-\uDE37\uDE3E\uDE80-\uDE86\uDE88\uDE8A-\uDE8D\uDE8F-\uDE9D\uDE9F-\uDEA8\uDEB0-\uDEEA\uDEF0-\uDEF9\uDF00-\uDF03\uDF05-\uDF0C\uDF0F\uDF10\uDF13-\uDF28\uDF2A-\uDF30\uDF32\uDF33\uDF35-\uDF39\uDF3C-\uDF44\uDF47\uDF48\uDF4B-\uDF4D\uDF50\uDF57\uDF5D-\uDF63\uDF66-\uDF6C\uDF70-\uDF74]|\uD805[\uDC00-\uDC4A\uDC50-\uDC59\uDC80-\uDCC5\uDCC7\uDCD0-\uDCD9\uDD80-\uDDB5\uDDB8-\uDDC0\uDDD8-\uDDDD\uDE00-\uDE40\uDE44\uDE50-\uDE59\uDE80-\uDEB7\uDEC0-\uDEC9\uDF00-\uDF19\uDF1D-\uDF2B\uDF30-\uDF39]|\uD806[\uDCA0-\uDCE9\uDCFF\uDE00-\uDE3E\uDE47\uDE50-\uDE83\uDE86-\uDE99\uDEC0-\uDEF8]|\uD807[\uDC00-\uDC08\uDC0A-\uDC36\uDC38-\uDC40\uDC50-\uDC59\uDC72-\uDC8F\uDC92-\uDCA7\uDCA9-\uDCB6\uDD00-\uDD06\uDD08\uDD09\uDD0B-\uDD36\uDD3A\uDD3C\uDD3D\uDD3F-\uDD47\uDD50-\uDD59]|\uD808[\uDC00-\uDF99]|\uD809[\uDC00-\uDC6E\uDC80-\uDD43]|[\uD80C\uD81C-\uD820\uD840-\uD868\uD86A-\uD86C\uD86F-\uD872\uD874-\uD879][\uDC00-\uDFFF]|\uD80D[\uDC00-\uDC2E]|\uD811[\uDC00-\uDE46]|\uD81A[\uDC00-\uDE38\uDE40-\uDE5E\uDE60-\uDE69\uDED0-\uDEED\uDEF0-\uDEF4\uDF00-\uDF36\uDF40-\uDF43\uDF50-\uDF59\uDF63-\uDF77\uDF7D-\uDF8F]|\uD81B[\uDF00-\uDF44\uDF50-\uDF7E\uDF8F-\uDF9F\uDFE0\uDFE1]|\uD821[\uDC00-\uDFEC]|\uD822[\uDC00-\uDEF2]|\uD82C[\uDC00-\uDD1E\uDD70-\uDEFB]|\uD82F[\uDC00-\uDC6A\uDC70-\uDC7C\uDC80-\uDC88\uDC90-\uDC99\uDC9D\uDC9E]|\uD834[\uDD65-\uDD69\uDD6D-\uDD72\uDD7B-\uDD82\uDD85-\uDD8B\uDDAA-\uDDAD\uDE42-\uDE44]|\uD835[\uDC00-\uDC54\uDC56-\uDC9C\uDC9E\uDC9F\uDCA2\uDCA5\uDCA6\uDCA9-\uDCAC\uDCAE-\uDCB9\uDCBB\uDCBD-\uDCC3\uDCC5-\uDD05\uDD07-\uDD0A\uDD0D-\uDD14\uDD16-\uDD1C\uDD1E-\uDD39\uDD3B-\uDD3E\uDD40-\uDD44\uDD46\uDD4A-\uDD50\uDD52-\uDEA5\uDEA8-\uDEC0\uDEC2-\uDEDA\uDEDC-\uDEFA\uDEFC-\uDF14\uDF16-\uDF34\uDF36-\uDF4E\uDF50-\uDF6E\uDF70-\uDF88\uDF8A-\uDFA8\uDFAA-\uDFC2\uDFC4-\uDFCB\uDFCE-\uDFFF]|\uD836[\uDE00-\uDE36\uDE3B-\uDE6C\uDE75\uDE84\uDE9B-\uDE9F\uDEA1-\uDEAF]|\uD838[\uDC00-\uDC06\uDC08-\uDC18\uDC1B-\uDC21\uDC23\uDC24\uDC26-\uDC2A]|\uD83A[\uDC00-\uDCC4\uDCD0-\uDCD6\uDD00-\uDD4A\uDD50-\uDD59]|\uD83B[\uDE00-\uDE03\uDE05-\uDE1F\uDE21\uDE22\uDE24\uDE27\uDE29-\uDE32\uDE34-\uDE37\uDE39\uDE3B\uDE42\uDE47\uDE49\uDE4B\uDE4D-\uDE4F\uDE51\uDE52\uDE54\uDE57\uDE59\uDE5B\uDE5D\uDE5F\uDE61\uDE62\uDE64\uDE67-\uDE6A\uDE6C-\uDE72\uDE74-\uDE77\uDE79-\uDE7C\uDE7E\uDE80-\uDE89\uDE8B-\uDE9B\uDEA1-\uDEA3\uDEA5-\uDEA9\uDEAB-\uDEBB]|\uD869[\uDC00-\uDED6\uDF00-\uDFFF]|\uD86D[\uDC00-\uDF34\uDF40-\uDFFF]|\uD86E[\uDC00-\uDC1D\uDC20-\uDFFF]|\uD873[\uDC00-\uDEA1\uDEB0-\uDFFF]|\uD87A[\uDC00-\uDFE0]|\uD87E[\uDC00-\uDE1D]|\uDB40[\uDD00-\uDDEF]/;

  var unicode = {
    Space_Separator: Space_Separator,
    ID_Start: ID_Start,
    ID_Continue: ID_Continue,
  };

  var util = {
    isSpaceSeparator: function isSpaceSeparator(c) {
      return typeof c === 'string' && unicode.Space_Separator.test(c);
    },

    isIdStartChar: function isIdStartChar(c) {
      return (
        typeof c === 'string' &&
        ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || c === '$' || c === '_' || unicode.ID_Start.test(c))
      );
    },

    isIdContinueChar: function isIdContinueChar(c) {
      return (
        typeof c === 'string' &&
        ((c >= 'a' && c <= 'z') ||
          (c >= 'A' && c <= 'Z') ||
          (c >= '0' && c <= '9') ||
          c === '$' ||
          c === '_' ||
          c === '\u200C' ||
          c === '\u200D' ||
          unicode.ID_Continue.test(c))
      );
    },

    isDigit: function isDigit(c) {
      return typeof c === 'string' && /[0-9]/.test(c);
    },

    isHexDigit: function isHexDigit(c) {
      return typeof c === 'string' && /[0-9A-Fa-f]/.test(c);
    },
  };

  var source;
  var parseState;
  var stack;
  var pos;
  var line;
  var column;
  var token;
  var key;
  var root;

  var parse = function parse(text, reviver) {
    source = String(text);
    parseState = 'start';
    stack = [];
    pos = 0;
    line = 1;
    column = 0;
    token = undefined;
    key = undefined;
    root = undefined;

    do {
      token = lex();

      // This code is unreachable.
      // if (!parseStates[parseState]) {
      //     throw invalidParseState()
      // }

      parseStates[parseState]();
    } while (token.type !== 'eof');

    if (typeof reviver === 'function') {
      return internalize({ '': root }, '', reviver);
    }

    return root;
  };

  function internalize(holder, name, reviver) {
    var value = holder[name];
    if (value != null && typeof value === 'object') {
      if (Array.isArray(value)) {
        for (var i = 0; i < value.length; i++) {
          var key = String(i);
          var replacement = internalize(value, key, reviver);
          if (replacement === undefined) {
            delete value[key];
          } else {
            Object.defineProperty(value, key, {
              value: replacement,
              writable: true,
              enumerable: true,
              configurable: true,
            });
          }
        }
      } else {
        for (var key$1 in value) {
          var replacement$1 = internalize(value, key$1, reviver);
          if (replacement$1 === undefined) {
            delete value[key$1];
          } else {
            Object.defineProperty(value, key$1, {
              value: replacement$1,
              writable: true,
              enumerable: true,
              configurable: true,
            });
          }
        }
      }
    }

    return reviver.call(holder, name, value);
  }

  var lexState;
  var buffer;
  var doubleQuote;
  var sign;
  var c;

  function lex() {
    lexState = 'default';
    buffer = '';
    doubleQuote = false;
    sign = 1;

    for (;;) {
      c = peek();

      // This code is unreachable.
      // if (!lexStates[lexState]) {
      //     throw invalidLexState(lexState)
      // }

      var token = lexStates[lexState]();
      if (token) {
        return token;
      }
    }
  }

  function peek() {
    if (source[pos]) {
      return String.fromCodePoint(source.codePointAt(pos));
    }
  }

  function read() {
    var c = peek();

    if (c === '\n') {
      line++;
      column = 0;
    } else if (c) {
      column += c.length;
    } else {
      column++;
    }

    if (c) {
      pos += c.length;
    }

    return c;
  }

  var lexStates = {
    default: function default$1() {
      switch (c) {
        case '\t':
        case '\v':
        case '\f':
        case ' ':
        case '\u00A0':
        case '\uFEFF':
        case '\n':
        case '\r':
        case '\u2028':
        case '\u2029':
          read();
          return;

        case '/':
          read();
          lexState = 'comment';
          return;

        case undefined:
          read();
          return newToken('eof');
      }

      if (util.isSpaceSeparator(c)) {
        read();
        return;
      }

      // This code is unreachable.
      // if (!lexStates[parseState]) {
      //     throw invalidLexState(parseState)
      // }

      return lexStates[parseState]();
    },

    comment: function comment() {
      switch (c) {
        case '*':
          read();
          lexState = 'multiLineComment';
          return;

        case '/':
          read();
          lexState = 'singleLineComment';
          return;
      }

      throw invalidChar(read());
    },

    multiLineComment: function multiLineComment() {
      switch (c) {
        case '*':
          read();
          lexState = 'multiLineCommentAsterisk';
          return;

        case undefined:
          throw invalidChar(read());
      }

      read();
    },

    multiLineCommentAsterisk: function multiLineCommentAsterisk() {
      switch (c) {
        case '*':
          read();
          return;

        case '/':
          read();
          lexState = 'default';
          return;

        case undefined:
          throw invalidChar(read());
      }

      read();
      lexState = 'multiLineComment';
    },

    singleLineComment: function singleLineComment() {
      switch (c) {
        case '\n':
        case '\r':
        case '\u2028':
        case '\u2029':
          read();
          lexState = 'default';
          return;

        case undefined:
          read();
          return newToken('eof');
      }

      read();
    },

    value: function value() {
      switch (c) {
        case '{':
        case '[':
          return newToken('punctuator', read());

        case 'n':
          read();
          literal('ull');
          return newToken('null', null);

        case 't':
          read();
          literal('rue');
          return newToken('boolean', true);

        case 'f':
          read();
          literal('alse');
          return newToken('boolean', false);

        case '-':
        case '+':
          if (read() === '-') {
            sign = -1;
          }

          lexState = 'sign';
          return;

        case '.':
          buffer = read();
          lexState = 'decimalPointLeading';
          return;

        case '0':
          buffer = read();
          lexState = 'zero';
          return;

        case '1':
        case '2':
        case '3':
        case '4':
        case '5':
        case '6':
        case '7':
        case '8':
        case '9':
          buffer = read();
          lexState = 'decimalInteger';
          return;

        case 'I':
          read();
          literal('nfinity');
          return newToken('numeric', Infinity);

        case 'N':
          read();
          literal('aN');
          return newToken('numeric', NaN);

        case '"':
        case "'":
          doubleQuote = read() === '"';
          buffer = '';
          lexState = 'string';
          return;
      }

      throw invalidChar(read());
    },

    identifierNameStartEscape: function identifierNameStartEscape() {
      if (c !== 'u') {
        throw invalidChar(read());
      }

      read();
      var u = unicodeEscape();
      switch (u) {
        case '$':
        case '_':
          break;

        default:
          if (!util.isIdStartChar(u)) {
            throw invalidIdentifier();
          }

          break;
      }

      buffer += u;
      lexState = 'identifierName';
    },

    identifierName: function identifierName() {
      switch (c) {
        case '$':
        case '_':
        case '\u200C':
        case '\u200D':
          buffer += read();
          return;

        case '\\':
          read();
          lexState = 'identifierNameEscape';
          return;
      }

      if (util.isIdContinueChar(c)) {
        buffer += read();
        return;
      }

      return newToken('identifier', buffer);
    },

    identifierNameEscape: function identifierNameEscape() {
      if (c !== 'u') {
        throw invalidChar(read());
      }

      read();
      var u = unicodeEscape();
      switch (u) {
        case '$':
        case '_':
        case '\u200C':
        case '\u200D':
          break;

        default:
          if (!util.isIdContinueChar(u)) {
            throw invalidIdentifier();
          }

          break;
      }

      buffer += u;
      lexState = 'identifierName';
    },

    sign: function sign$1() {
      switch (c) {
        case '.':
          buffer = read();
          lexState = 'decimalPointLeading';
          return;

        case '0':
          buffer = read();
          lexState = 'zero';
          return;

        case '1':
        case '2':
        case '3':
        case '4':
        case '5':
        case '6':
        case '7':
        case '8':
        case '9':
          buffer = read();
          lexState = 'decimalInteger';
          return;

        case 'I':
          read();
          literal('nfinity');
          return newToken('numeric', sign * Infinity);

        case 'N':
          read();
          literal('aN');
          return newToken('numeric', NaN);
      }

      throw invalidChar(read());
    },

    zero: function zero() {
      switch (c) {
        case '.':
          buffer += read();
          lexState = 'decimalPoint';
          return;

        case 'e':
        case 'E':
          buffer += read();
          lexState = 'decimalExponent';
          return;

        case 'x':
        case 'X':
          buffer += read();
          lexState = 'hexadecimal';
          return;
      }

      return newToken('numeric', sign * 0);
    },

    decimalInteger: function decimalInteger() {
      switch (c) {
        case '.':
          buffer += read();
          lexState = 'decimalPoint';
          return;

        case 'e':
        case 'E':
          buffer += read();
          lexState = 'decimalExponent';
          return;
      }

      if (util.isDigit(c)) {
        buffer += read();
        return;
      }

      return newToken('numeric', sign * Number(buffer));
    },

    decimalPointLeading: function decimalPointLeading() {
      if (util.isDigit(c)) {
        buffer += read();
        lexState = 'decimalFraction';
        return;
      }

      throw invalidChar(read());
    },

    decimalPoint: function decimalPoint() {
      switch (c) {
        case 'e':
        case 'E':
          buffer += read();
          lexState = 'decimalExponent';
          return;
      }

      if (util.isDigit(c)) {
        buffer += read();
        lexState = 'decimalFraction';
        return;
      }

      return newToken('numeric', sign * Number(buffer));
    },

    decimalFraction: function decimalFraction() {
      switch (c) {
        case 'e':
        case 'E':
          buffer += read();
          lexState = 'decimalExponent';
          return;
      }

      if (util.isDigit(c)) {
        buffer += read();
        return;
      }

      return newToken('numeric', sign * Number(buffer));
    },

    decimalExponent: function decimalExponent() {
      switch (c) {
        case '+':
        case '-':
          buffer += read();
          lexState = 'decimalExponentSign';
          return;
      }

      if (util.isDigit(c)) {
        buffer += read();
        lexState = 'decimalExponentInteger';
        return;
      }

      throw invalidChar(read());
    },

    decimalExponentSign: function decimalExponentSign() {
      if (util.isDigit(c)) {
        buffer += read();
        lexState = 'decimalExponentInteger';
        return;
      }

      throw invalidChar(read());
    },

    decimalExponentInteger: function decimalExponentInteger() {
      if (util.isDigit(c)) {
        buffer += read();
        return;
      }

      return newToken('numeric', sign * Number(buffer));
    },

    hexadecimal: function hexadecimal() {
      if (util.isHexDigit(c)) {
        buffer += read();
        lexState = 'hexadecimalInteger';
        return;
      }

      throw invalidChar(read());
    },

    hexadecimalInteger: function hexadecimalInteger() {
      if (util.isHexDigit(c)) {
        buffer += read();
        return;
      }

      return newToken('numeric', sign * Number(buffer));
    },

    string: function string() {
      switch (c) {
        case '\\':
          read();
          buffer += escape();
          return;

        case '"':
          if (doubleQuote) {
            read();
            return newToken('string', buffer);
          }

          buffer += read();
          return;

        case "'":
          if (!doubleQuote) {
            read();
            return newToken('string', buffer);
          }

          buffer += read();
          return;

        case '\n':
        case '\r':
          throw invalidChar(read());

        case '\u2028':
        case '\u2029':
          separatorChar(c);
          break;

        case undefined:
          throw invalidChar(read());
      }

      buffer += read();
    },

    start: function start() {
      switch (c) {
        case '{':
        case '[':
          return newToken('punctuator', read());

        // This code is unreachable since the default lexState handles eof.
        // case undefined:
        //     return newToken('eof')
      }

      lexState = 'value';
    },

    beforePropertyName: function beforePropertyName() {
      switch (c) {
        case '$':
        case '_':
          buffer = read();
          lexState = 'identifierName';
          return;

        case '\\':
          read();
          lexState = 'identifierNameStartEscape';
          return;

        case '}':
          return newToken('punctuator', read());

        case '"':
        case "'":
          doubleQuote = read() === '"';
          lexState = 'string';
          return;
      }

      if (util.isIdStartChar(c)) {
        buffer += read();
        lexState = 'identifierName';
        return;
      }

      throw invalidChar(read());
    },

    afterPropertyName: function afterPropertyName() {
      if (c === ':') {
        return newToken('punctuator', read());
      }

      throw invalidChar(read());
    },

    beforePropertyValue: function beforePropertyValue() {
      lexState = 'value';
    },

    afterPropertyValue: function afterPropertyValue() {
      switch (c) {
        case ',':
        case '}':
          return newToken('punctuator', read());
      }

      throw invalidChar(read());
    },

    beforeArrayValue: function beforeArrayValue() {
      if (c === ']') {
        return newToken('punctuator', read());
      }

      lexState = 'value';
    },

    afterArrayValue: function afterArrayValue() {
      switch (c) {
        case ',':
        case ']':
          return newToken('punctuator', read());
      }

      throw invalidChar(read());
    },

    end: function end() {
      // This code is unreachable since it's handled by the default lexState.
      // if (c === undefined) {
      //     read()
      //     return newToken('eof')
      // }

      throw invalidChar(read());
    },
  };

  function newToken(type, value) {
    return {
      type: type,
      value: value,
      line: line,
      column: column,
    };
  }

  function literal(s) {
    for (var i = 0, list = s; i < list.length; i += 1) {
      var c = list[i];

      var p = peek();

      if (p !== c) {
        throw invalidChar(read());
      }

      read();
    }
  }

  function escape() {
    var c = peek();
    switch (c) {
      case 'b':
        read();
        return '\b';

      case 'f':
        read();
        return '\f';

      case 'n':
        read();
        return '\n';

      case 'r':
        read();
        return '\r';

      case 't':
        read();
        return '\t';

      case 'v':
        read();
        return '\v';

      case '0':
        read();
        if (util.isDigit(peek())) {
          throw invalidChar(read());
        }

        return '\0';

      case 'x':
        read();
        return hexEscape();

      case 'u':
        read();
        return unicodeEscape();

      case '\n':
      case '\u2028':
      case '\u2029':
        read();
        return '';

      case '\r':
        read();
        if (peek() === '\n') {
          read();
        }

        return '';

      case '1':
      case '2':
      case '3':
      case '4':
      case '5':
      case '6':
      case '7':
      case '8':
      case '9':
        throw invalidChar(read());

      case undefined:
        throw invalidChar(read());
    }

    return read();
  }

  function hexEscape() {
    var buffer = '';
    var c = peek();

    if (!util.isHexDigit(c)) {
      throw invalidChar(read());
    }

    buffer += read();

    c = peek();
    if (!util.isHexDigit(c)) {
      throw invalidChar(read());
    }

    buffer += read();

    return String.fromCodePoint(parseInt(buffer, 16));
  }

  function unicodeEscape() {
    var buffer = '';
    var count = 4;

    while (count-- > 0) {
      var c = peek();
      if (!util.isHexDigit(c)) {
        throw invalidChar(read());
      }

      buffer += read();
    }

    return String.fromCodePoint(parseInt(buffer, 16));
  }

  var parseStates = {
    start: function start() {
      if (token.type === 'eof') {
        throw invalidEOF();
      }

      push();
    },

    beforePropertyName: function beforePropertyName() {
      switch (token.type) {
        case 'identifier':
        case 'string':
          key = token.value;
          parseState = 'afterPropertyName';
          return;

        case 'punctuator':
          // This code is unreachable since it's handled by the lexState.
          // if (token.value !== '}') {
          //     throw invalidToken()
          // }

          pop();
          return;

        case 'eof':
          throw invalidEOF();
      }

      // This code is unreachable since it's handled by the lexState.
      // throw invalidToken()
    },

    afterPropertyName: function afterPropertyName() {
      // This code is unreachable since it's handled by the lexState.
      // if (token.type !== 'punctuator' || token.value !== ':') {
      //     throw invalidToken()
      // }

      if (token.type === 'eof') {
        throw invalidEOF();
      }

      parseState = 'beforePropertyValue';
    },

    beforePropertyValue: function beforePropertyValue() {
      if (token.type === 'eof') {
        throw invalidEOF();
      }

      push();
    },

    beforeArrayValue: function beforeArrayValue() {
      if (token.type === 'eof') {
        throw invalidEOF();
      }

      if (token.type === 'punctuator' && token.value === ']') {
        pop();
        return;
      }

      push();
    },

    afterPropertyValue: function afterPropertyValue() {
      // This code is unreachable since it's handled by the lexState.
      // if (token.type !== 'punctuator') {
      //     throw invalidToken()
      // }

      if (token.type === 'eof') {
        throw invalidEOF();
      }

      switch (token.value) {
        case ',':
          parseState = 'beforePropertyName';
          return;

        case '}':
          pop();
      }

      // This code is unreachable since it's handled by the lexState.
      // throw invalidToken()
    },

    afterArrayValue: function afterArrayValue() {
      // This code is unreachable since it's handled by the lexState.
      // if (token.type !== 'punctuator') {
      //     throw invalidToken()
      // }

      if (token.type === 'eof') {
        throw invalidEOF();
      }

      switch (token.value) {
        case ',':
          parseState = 'beforeArrayValue';
          return;

        case ']':
          pop();
      }

      // This code is unreachable since it's handled by the lexState.
      // throw invalidToken()
    },

    end: function end() {
      // This code is unreachable since it's handled by the lexState.
      // if (token.type !== 'eof') {
      //     throw invalidToken()
      // }
    },
  };

  function push() {
    var value;

    switch (token.type) {
      case 'punctuator':
        switch (token.value) {
          case '{':
            value = {};
            break;

          case '[':
            value = [];
            break;
        }

        break;

      case 'null':
      case 'boolean':
      case 'numeric':
      case 'string':
        value = token.value;
        break;

      // This code is unreachable.
      // default:
      //     throw invalidToken()
    }

    if (root === undefined) {
      root = value;
    } else {
      var parent = stack[stack.length - 1];
      if (Array.isArray(parent)) {
        parent.push(value);
      } else {
        Object.defineProperty(parent, key, {
          value: value,
          writable: true,
          enumerable: true,
          configurable: true,
        });
      }
    }

    if (value !== null && typeof value === 'object') {
      stack.push(value);

      if (Array.isArray(value)) {
        parseState = 'beforeArrayValue';
      } else {
        parseState = 'beforePropertyName';
      }
    } else {
      var current = stack[stack.length - 1];
      if (current == null) {
        parseState = 'end';
      } else if (Array.isArray(current)) {
        parseState = 'afterArrayValue';
      } else {
        parseState = 'afterPropertyValue';
      }
    }
  }

  function pop() {
    stack.pop();

    var current = stack[stack.length - 1];
    if (current == null) {
      parseState = 'end';
    } else if (Array.isArray(current)) {
      parseState = 'afterArrayValue';
    } else {
      parseState = 'afterPropertyValue';
    }
  }

  // This code is unreachable.
  // function invalidParseState () {
  //     return new Error(`JSON5: invalid parse state '${parseState}'`)
  // }

  // This code is unreachable.
  // function invalidLexState (state) {
  //     return new Error(`JSON5: invalid lex state '${state}'`)
  // }

  function invalidChar(c) {
    if (c === undefined) {
      return syntaxError('JSON5: invalid end of input at ' + line + ':' + column);
    }

    return syntaxError("JSON5: invalid character '" + formatChar(c) + "' at " + line + ':' + column);
  }

  function invalidEOF() {
    return syntaxError('JSON5: invalid end of input at ' + line + ':' + column);
  }

  // This code is unreachable.
  // function invalidToken () {
  //     if (token.type === 'eof') {
  //         return syntaxError(`JSON5: invalid end of input at ${line}:${column}`)
  //     }

  //     const c = String.fromCodePoint(token.value.codePointAt(0))
  //     return syntaxError(`JSON5: invalid character '${formatChar(c)}' at ${line}:${column}`)
  // }

  function invalidIdentifier() {
    column -= 5;
    return syntaxError('JSON5: invalid identifier character at ' + line + ':' + column);
  }

  function separatorChar(c) {
    console.warn("JSON5: '" + formatChar(c) + "' in strings is not valid ECMAScript; consider escaping");
  }

  function formatChar(c) {
    var replacements = {
      "'": "\\'",
      '"': '\\"',
      '\\': '\\\\',
      '\b': '\\b',
      '\f': '\\f',
      '\n': '\\n',
      '\r': '\\r',
      '\t': '\\t',
      '\v': '\\v',
      '\0': '\\0',
      '\u2028': '\\u2028',
      '\u2029': '\\u2029',
    };

    if (replacements[c]) {
      return replacements[c];
    }

    if (c < ' ') {
      var hexString = c.charCodeAt(0).toString(16);
      return '\\x' + ('00' + hexString).substring(hexString.length);
    }

    return c;
  }

  function syntaxError(message) {
    var err = new SyntaxError(message);
    err.lineNumber = line;
    err.columnNumber = column;
    return err;
  }

  var stringify = function stringify(value, replacer, space) {
    var stack = [];
    var indent = '';
    var propertyList;
    var replacerFunc;
    var gap = '';
    var quote;

    if (replacer != null && typeof replacer === 'object' && !Array.isArray(replacer)) {
      space = replacer.space;
      quote = replacer.quote;
      replacer = replacer.replacer;
    }

    if (typeof replacer === 'function') {
      replacerFunc = replacer;
    } else if (Array.isArray(replacer)) {
      propertyList = [];
      for (var i = 0, list = replacer; i < list.length; i += 1) {
        var v = list[i];

        var item = void 0;

        if (typeof v === 'string') {
          item = v;
        } else if (typeof v === 'number' || v instanceof String || v instanceof Number) {
          item = String(v);
        }

        if (item !== undefined && propertyList.indexOf(item) < 0) {
          propertyList.push(item);
        }
      }
    }

    if (space instanceof Number) {
      space = Number(space);
    } else if (space instanceof String) {
      space = String(space);
    }

    if (typeof space === 'number') {
      if (space > 0) {
        space = Math.min(10, Math.floor(space));
        gap = '          '.substr(0, space);
      }
    } else if (typeof space === 'string') {
      gap = space.substr(0, 10);
    }

    return serializeProperty('', { '': value });

    function serializeProperty(key, holder) {
      var value = holder[key];
      if (value != null) {
        if (typeof value.toJSON5 === 'function') {
          value = value.toJSON5(key);
        } else if (typeof value.toJSON === 'function') {
          value = value.toJSON(key);
        }
      }

      if (replacerFunc) {
        value = replacerFunc.call(holder, key, value);
      }

      if (value instanceof Number) {
        value = Number(value);
      } else if (value instanceof String) {
        value = String(value);
      } else if (value instanceof Boolean) {
        value = value.valueOf();
      }

      switch (value) {
        case null:
          return 'null';
        case true:
          return 'true';
        case false:
          return 'false';
      }

      if (typeof value === 'string') {
        return quoteString(value, false);
      }

      if (typeof value === 'number') {
        return String(value);
      }

      if (typeof value === 'object') {
        return Array.isArray(value) ? serializeArray(value) : serializeObject(value);
      }

      return undefined;
    }

    function quoteString(value) {
      var quotes = {
        "'": 0.1,
        '"': 0.2,
      };

      var replacements = {
        "'": "\\'",
        '"': '\\"',
        '\\': '\\\\',
        '\b': '\\b',
        '\f': '\\f',
        '\n': '\\n',
        '\r': '\\r',
        '\t': '\\t',
        '\v': '\\v',
        '\0': '\\0',
        '\u2028': '\\u2028',
        '\u2029': '\\u2029',
      };

      var product = '';

      for (var i = 0; i < value.length; i++) {
        var c = value[i];
        switch (c) {
          case "'":
          case '"':
            quotes[c]++;
            product += c;
            continue;

          case '\0':
            if (util.isDigit(value[i + 1])) {
              product += '\\x00';
              continue;
            }
        }

        if (replacements[c]) {
          product += replacements[c];
          continue;
        }

        if (c < ' ') {
          var hexString = c.charCodeAt(0).toString(16);
          product += '\\x' + ('00' + hexString).substring(hexString.length);
          continue;
        }

        product += c;
      }

      var quoteChar =
        quote ||
        Object.keys(quotes).reduce(function (a, b) {
          return quotes[a] < quotes[b] ? a : b;
        });

      product = product.replace(new RegExp(quoteChar, 'g'), replacements[quoteChar]);

      return quoteChar + product + quoteChar;
    }

    function serializeObject(value) {
      if (stack.indexOf(value) >= 0) {
        throw TypeError('Converting circular structure to JSON5');
      }

      stack.push(value);

      var stepback = indent;
      indent = indent + gap;

      var keys = propertyList || Object.keys(value);
      var partial = [];
      for (var i = 0, list = keys; i < list.length; i += 1) {
        var key = list[i];

        var propertyString = serializeProperty(key, value);
        if (propertyString !== undefined) {
          var member = serializeKey(key) + ':';
          if (gap !== '') {
            member += ' ';
          }
          member += propertyString;
          partial.push(member);
        }
      }

      var final;
      if (partial.length === 0) {
        final = '{}';
      } else {
        var properties;
        if (gap === '') {
          properties = partial.join(',');
          final = '{' + properties + '}';
        } else {
          var separator = ',\n' + indent;
          properties = partial.join(separator);
          final = '{\n' + indent + properties + ',\n' + stepback + '}';
        }
      }

      stack.pop();
      indent = stepback;
      return final;
    }

    function serializeKey(key) {
      if (key.length === 0) {
        return quoteString(key, true);
      }

      var firstChar = String.fromCodePoint(key.codePointAt(0));
      if (!util.isIdStartChar(firstChar)) {
        return quoteString(key, true);
      }

      for (var i = firstChar.length; i < key.length; i++) {
        if (!util.isIdContinueChar(String.fromCodePoint(key.codePointAt(i)))) {
          return quoteString(key, true);
        }
      }

      return key;
    }

    function serializeArray(value) {
      if (stack.indexOf(value) >= 0) {
        throw TypeError('Converting circular structure to JSON5');
      }

      stack.push(value);

      var stepback = indent;
      indent = indent + gap;

      var partial = [];
      for (var i = 0; i < value.length; i++) {
        var propertyString = serializeProperty(String(i), value);
        partial.push(propertyString !== undefined ? propertyString : 'null');
      }

      var final;
      if (partial.length === 0) {
        final = '[]';
      } else {
        if (gap === '') {
          var properties = partial.join(',');
          final = '[' + properties + ']';
        } else {
          var separator = ',\n' + indent;
          var properties$1 = partial.join(separator);
          final = '[\n' + indent + properties$1 + ',\n' + stepback + ']';
        }
      }

      stack.pop();
      indent = stepback;
      return final;
    }
  };

  var JSON5 = {
    parse: parse,
    stringify: stringify,
  };

  var lib = JSON5;

  var es5 = lib;

  return es5;
});

export default JSON5;
